Which of the following GMAW wire electrode sizes would be most appropriate for welding thin-gauge sheet metal?

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Multiple choice — select the best answer

A1/16 inch (1.6 mm)
B0.045 inch (1.2 mm)
C0.030 inch (0.8 mm)
D3/32 inch (2.4 mm)

✓ Correct answer: C. 0.030 inch (0.8 mm) 0.030 inch (0.8 mm) diameter wire is typically recommended for thin-gauge sheet metal applications in GMAW. The smaller diameter provides better control and less heat input for thin materials.

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Which of the following GMAW wire electrode sizes would be most appropriate for welding thin-gauge sheet metal?

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